Detecting complex lines and collision points in mechanical and electrical engineering has always been more challenging compared to buildings and other structures. With the advent of BIM, many expect it to resolve these issues. But is that really the case? Today, I will discuss common challenges when importing BIM into mechanical and electrical engineering.
1. Enterprise Time Constraints
The detailed design phase for mechanical and electrical systems often faces tight deadlines. While building designs can take a long time to develop, adjust, and finalize, mechanical and electrical units typically receive architectural drawings only after the main design is complete. From that point, they usually have just one to two months for design before submitting for review.
Once the building permit is granted, the five major mechanical and electrical pipeline systems must complete drawing reviews within one and a half to two months. This is crucial as it impacts subsequent construction schedules, layout, and inspections. Consequently, mechatronics teams are often under pressure.
Based on manufacturers’ experience, during the early stages of adopting Revit, using BIM software for projects of similar size took two to three times longer than traditional CAD drafting. This time requirement makes it impractical to use BIM for preparing drawings prior to mechanical and electrical equipment review submissions.
As a result, the current practice is to produce mechanical and electrical drawings in CAD for review submission. After the five-pipeline review is completed, BIM drawings can be developed for construction purposes, often based on the CAD drawings. Moreover, not all pipelines are fully drawn; some owners only require visible pipes with diameters of 2 inches or greater to be included. This means the final design drawings do not fully represent the data, limiting BIM’s advantages in simplifying design workflows.
2. Drawing Review Unit Requirements
The review units responsible for the five major mechanical and electrical pipelines require various drawings, including floor plans, elevation views, 3D diagrams, single-line diagrams, and regulatory compliance checks. Currently, the base BIM software primarily supports floor plan creation. Additional plugins or parameter settings are needed to meet other review requirements.
Therefore, at this time, only the floor plans are typically created with BIM software. Other drawings are still produced using AutoCAD or similar tools to ensure a complete submission package.
3. Lack of Equipment Components
Mechanical and electrical components differ significantly from building components. Building elements like walls, beams, ceilings, doors, and windows can be easily customized to suit architectural designs. Some bathroom fixtures can also be created using BIM software to meet component requirements.
However, mechanical and electrical projects involve complex systems with numerous manufacturers, which complicates integration. It is unrealistic for a single firm to construct a complete project’s components all at once.
4. Professional Development at the Construction Stage
For a construction project to fully benefit from BIM from design through completion, there must be a comprehensive increase in professional skills across all teams involved. If BIM is only used during the design phase and contractors cannot operate or utilize the BIM data, the process becomes ineffective.
Without active use and implementation on the construction side, BIM remains just an empty concept without practical value.
That wraps up the discussion on common challenges when importing BIM into mechanical and electrical engineering. I hope this article is helpful to you! For more related content, check out our recommended reading on BIM import.
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